Quantitation of fatty acids in breath by secondary electrospray ionization mass spectrometry

摘要

Based on the response of our system to known concentrations of a series of fatty acids (C3-C7), we have estimated their concentration in breath to be in the order of 100 ppt. These values are in reasonable good agreement with those expectable from typical plasma concentrations and Henry constant law. This study supports the hypothesis regarding the systemic (lung) origin of breath fatty acids.